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arXiv · 1311.0949

Time optimal quantum control of two-qubit systems

Bin Li·Zu-Huan Yu·Shao-Ming Fei·XianQing Li-Jost
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Abstract

We study the optimal quantum control of heteronuclear two-qubit systems described by a Hamiltonian containing both nonlocal internal drift and local control terms. We derive an explicit formula to compute the minimum time required to steer the system from an initial state to a specified final state. As applications the minimal time to implement Controlled-NOT gate, SWAP gate and Controlled-U gate is calculated in detail. The experimental realizations of these quantum gates are explicitly presented.

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Bin Li, Zu-Huan Yu, Shao-Ming Fei, XianQing Li-Jost. 2013-11-05. Time optimal quantum control of two-qubit systems. https://doi.org/10.1007/s11433-013-5325-9

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